5.5.3 Opening a plot window

Opening a graphic device is done with the open() command:

  open()    # open a device, default: XWindow
  op()      # same result using the shortened command

The default is to open an XWindow. You can use:

  op('?')

to get a list of all recognized devices. For example, opening a colour PostScipt file named signal.ps is done with:

  op('signal.ps/CPS')